libopus only uses the DSP module of Ne10, and never uses the init functions.
Signed-off-by: Michael Bradshaw <mjbshaw@google.com>
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
Some of the fields present in NE10's float state struct are not
present in the fixed-point version, but we were generating
initializers for them anyway.
Also, the float modes were not up-to-date with the output of
dump_modes.
Optimize opus encode (float only) usecase using ARM NE10
library. Mainly effects opus_fft and ctl_mdct_forward
and related functions.
This optimization can be used for ARM CPUs that have NEON
VFP unit. This patch only enables optimizations for ARMv7.
Official ARM NE10 library page available at
http://projectne10.github.io/Ne10/
To enable this optimization, use
--enable-intrinsics --with-NE10=<install_prefix>
or
--enable-intrinsics --with-NE10-libraries=<NE10_lib_dir> --with-NE10-includes=<NE10_includes_dir>
Compile time checks made during configure process to make sure
optimization option available only when compiler supports NEON
instrinsics.
Runtime checks made to make sure optimized functions only called
on appropriate hardware.
Signed-off-by: Timothy B. Terriberry <tterribe@xiph.org>
This also happens to increase the accuracy since it appears that the new
ordering is optimal (at least for 20 ms frames), whereas the previous ordering
was pessimal.
